Washboiler



Dec. 10, 1929.

N. D. GOFF WASHBOILER Filed Dec. 8, 1927 Patented Dec. 10, 1929 NARA D.GOFF, or cnm'ronglowa- WASHBOILER Application filed December The purposeof the present invention is to produce a washboiler primarily intendedfor domestic use, of increased utility, efficiency and economy. I havefound that if the s ur- .face exposed to the heat be increased the con-'tents of the boiler will be brought more quickly to the boiling pointand the fuel be more efliciently made use of.

Forms my invention take are illustrated in the accompanying drawings inwhich Figure 1 is a transverse vertical section through a washboilerembodying my invention; Fig. 2

is a transverse horizontal section through a washboiler; Fig. 3 is a topplan view of the cover; and Fig. 4 is a transverse vertical section of awashboiler embodying my invention in another form.

The washboiler comprises the usual bottom piece 1 which is joined in asuitable manner -to the wall member 2. While the form or shape of thewashboiler is not material to my invention I have shown the usual ortypical form which is somewhat oval in plan having straight sides andmore or less circular ends. In this construction there is a single sidewall member which runs around the entire washboiler. It is this sidemember which is marked 2 in the drawings and it cooperates with thebottom member to form the recepta- 'cle into which water or othermaterial to be heated is placed and into which the clothing to be boiledmay be placed.

The structure so far described is of the usual well known ordinary type.In order to incorporate my invention in full I make certain changestherein or additions thereto.

The bottom 1 of the boiler is perforated and in the perforations areinsertedand fastened upwardly extending tubes 3. These tubes 3 may beseparated somewhat from the sides 2 of the boiler but I prefer forpractical reasonsto have the tubes 3 run upwardly in contact with theside wall 2, The tubes and the side wall may thus be fastened togetherand so lend greater rigidity to the structure as a whole. In the usualwashboiler prior tomy invention the heat struck only upon the bottom ofthe boiler and was conducted throughout the contents of the boiler byinternal circulation of the fluid only.

s, .1921. Seria1 No..238,564.-

Byxmy arrangementhowever it will be seen t-heheatreaches not only thebottom-of the boiler. but .r,isesthrough. the tubes 3 and istliusuimpartedsto the contentsof the boiler atalllevels; I Inordertoffacilitataor:augment the pase sage of heat vthrough. the tubes3-. the sidev wall '2Qmaybe extended below theboiler so as .toform. a.flange or baffle-tpreferably en? tirely surrounding. the bottom. 2 ofthe boiler. and the gas burner or burners or other source of'heat. I

It will 'be-v readily seen thatfif the bottom of the boiler is smoothandnot provided with theLflangeA theheat on strikingthe bottomwilldeflectan ddissipate. my arrangement-.however the heat is restrainedby the dependingfiange 4 whichacts as a baffle wall anddefleQtS theheatupwardly through the tubes 3. thus. affording increased applicationof the heat and more efficient use thereof. It will be understood; ofcourse, that the connection between the bottom. 1 and the sidewallf2willbe made water tight in anyusual or suitable manner andlikewisethe jointsbe tween the tubes 3Iandthebottom 1 will bemadewatertight inany usual and. suitable manner. I I g y The wholestructure may be made of metal andJfor greateriefiiciencyymetals ofthehigh- U est heat conductivity may be employed. The tubes 3fmay,extend to the top of the side wall 2 but when thecover is to'be usedwith the boilerl prefer tofextcnd the tubes 3 higher than or :abovetheside wall 2 and to provide the:cover .5 with perforations 6 toreceive and pass over T the upward extensions of tubes 3. Itwillbeobserved that in order to allow free passage;offthe heat the tubesare open and. unobstructed. at both ends.

While thetubesv 3 may be fastened. to the I sidewall 2-by;welding or inany other suit-- able manner I have shown them as soldered to thesidewall -2..in Fig. 2. In Fig. 4 1 have shown anoption'al form in whichthe cover 5 need not be perforated. In this arrangement I have showntheztubes 3 rising from the bottom. l and toward their upp'erends curvedoutwardl .and passing through perforations in tlie sic ewall 2., Thisarrangement allows open endedtubes Vertically disposed and ex a freepassage of the heat which by the baflle or flange 4 is deflected upwardthrough the tubes 3? which extend through the contents of the boiler andthen laterally through the open ends of the tubes in the perforations inthe side wall 2.

When the boiler is placed on the ordinary heating stove with a flatsurfaceon which the boiler rests,'a series of round holes orperforations can be placed in the flange or bafile, the purpose of theopenings being to insure a free passage of hot air currents from-bothunderneath the boiler and outside thereof. This construction will insurea free passage of hot air currents that are radiated from,

possibility of any vacuum forming und'erneath the boiler.

Changes may be made from the, details here shown embodying my invention.I claim as my invention: '1. In a washboiler, a bottom, a side band,

tending from the bottom upward adjacent to the side band and above thetop of the side band, and a removable cover perforated to fit over theupper ends of the tubes-and close the washboiler.

2. A washboiler comprising a perforated bottom, a side wall extendingupward from of the tubes passing through the perforations in the cover.

5. In a washboiler, a bottom, a side band extending below the bottom andforming a flange and open ended tubes vertically disposed and extendingfrom the bottom upward in contact with the side band.

' 1 NARA D.- GOFF.

the bottom, open ended tubes in the perfo'ra tions extending upward fromthe bottom within the boiler and adjacent tothe side wall and connectedthereto, an extension of the side wall below the bottom and adjacent thelower open ends of the tubes and acting as a battle, to deflect heatupward through the tubes, a. perforated cover for'closing the boiler andextensions on the upper ends of the tubes passing through the cover.

'3. A washboiler comprising a perforated bottom, a side wall extendingupward from the'bottom, open ended tubes in the perforations extendingupward from the bottom within the boiler and adjacent to the side walland connected thereto, and an extension of the side wall below thebottom and adjacent the lower open ends of the tubes and acting as abaflie to deflect heat upward,

through the tubes.

.4. A washboiler comprising a perforated bottom, aside wallextendingupward from" the bottom, openended tubes in the perforations extendingupward from the bottom within the boiler andadjacent to the side wallandconnected thereto,and a perforated; cover for closing the boiler theupper ends

